import 'package:flutter/material.dart';

class Lishi extends StatefulWidget {
  Lishi({Key key}) : super(key: key);

  _LishiState createState() => _LishiState();
}

class _LishiState extends State<Lishi> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
         appBar: AppBar(
           title: Text('历史'),
         ),
         body: Text('历史记录'),
       );
  }
}